Refactor cat-file batch operations and support --batch-command approach (#35775)

Replace #34651 and address more problems including fix framework bugs and changing to QueryInfo and QueryContent calls.

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

modules/git/repo_base_nogogit_test.go

@@ -0,0 +1,26 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+//go:build !gogit
+
+package git
+
+import (
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestRepoCatFileBatch(t *testing.T) {
+	t.Run("MissingRepoAndClose", func(t *testing.T) {
+		repo, err := OpenRepository(t.Context(), filepath.Join(testReposDir, "repo1_bare"))
+		require.NoError(t, err)
+		repo.Path = "/no-such" // when the repo is missing (it usually occurs during testing because the fixtures are synced frequently)
+		_, _, err = repo.CatFileBatch(t.Context())
+		require.Error(t, err)
+		require.NoError(t, repo.Close()) // shouldn't panic
+	})
+
+	// TODO: test more methods and concurrency queries
+}